The correct answer is carefully explain the meaning of potentially ambiguous terms.
The semantics of language refer to a feature of language relating to the meaning of words, phrases and expressions. When speaking a second language, understanding the semantics of that language can be tricky. Given the above, a useful way of overcoming the potential communication barrier created by semantics is explaining the meaning of ambiguous terms, such as words of phrases that have more than one meaning, or an unusual or unexpected meaning.